I'll tell you what to NOT do with it. Don't leave it around, because you start visualizing how you would fill it, then which chameleon to fill it with.
I encourage handling right at the ripe age of 4 months. I did that with my Sebastian. At first he did not like it at all, he saw me as a threat, I used to just take him out of his cage, walk him outside to some sun, hand feed him a cricket and put him back in, atleast 2 times a day. Sadly now...
Theres a green label Rep-Cal Calcium W/O (without) D3, http://lllreptile.com/store/catalog/reptile-supplies/vitamins-medicines-and-cage-cleaners/-/rep-cal-calcium-without-d3/
You need this to dust your crickets daily.
Many people will have different dusting schedules but mine is
4 days...
I was at the grand opening too and I saw THAT EXACT nosy be, im almost certain it's a male. It flared up when my girlfriend and I put our faces close to it's enclosure, what a sassy guy!
Ahh sorry, I never guessed the barring, he looks like my Sebastian, and I strongly belive my Sebastian is Blue Bar AND Red Bar. Some call it Sirama or Picasso
http://www.cleanlinechameleons.com/panther-chameleons/sirama-panther-chameleon/
If it's free range, I suggest the "Milk Jug" approach. If they are escaping from the bin, I suggest putting packaging tape all around inside the bin so they can't climb out.